package operator_0817;

public class MathOperator {
    public static void main(String[] args) {
//        int a=20;
//        int b=10;
//        System.out.println(a+b);
//        System.out.println(a-b);
//        System.out.println(a*b);
//        System.out.println(a/b);
//        System.out.println(a%b);
        int a=20;
        int b=0;
       // System.out.println(a%b);异常
    }
}
